- #1
mdavies23
Homework Statement
A physics student studying gravity on the surface of Mars, throws a ball into the air at time t=0s. The ball follows a parabolic trajectory as shown and reaches a maximum height height at t=2s. At t=1s the velocity of the ball is v(t=1s)= 2.00 m/s i + 3.72 m/s j where i and j are unit vectors in the x and y directons. You may ignore "air" resistance.
a.) Write the balls velocity in vector form at t = 2s and t = 3s
b.) From the information provided, calculate the magnitude of acceleration of gravity near the surface of the moon.
c.) Determine the initial speed and launch angle.
d.) How far away from the launch point does the ball land.
Homework Equations
sqrt(a^2 + b^2)
tan^-1(y/x)
The Attempt at a Solution
Honestly, I do not know how to start. I have drawn the velocity vectors and the graph of the ball.
sqrt(2^2 + 3.72^2) = 4.22 m/s
tan^-1(3.72/2) = 61.73 degrees